#define _CRT_SECURE_NO_WARNINGS

#include <iostream>
#include <string>
#include <vector>
#include <cmath>
#include <fstream>
#include <set>
#include <utility>
#include <algorithm>
#include <queue>
#include <stack>
#include <deque>
#include <numeric>
#include <sstream>
#include <list>
#include <map>
#include <stdlib.h>
#include <time.h>

#define rep(i,p,n) for(int i=(int)p;i<(int)n;i++)
#define repp(i,p,n) for(int i=(int)p;i>=(int)n;i--)
#define Sort(x) sort(x.begin(),x.end());
#define ll long long
#define INF 2000000000

using namespace std;
int main() {
	long long a, b;
	cin >> a >> b;
	rep(i, a, b + 1) {
		long long n = i;
			if (n % 3 == 0) {
				cout << i << endl;
			}
			else {
				while (n > 0) {
					if (n % 10 == 3) {
						cout << i << endl;
						break;
					}
					n /= 10;
				}
			}
		
	}


	return 0;
}